org.apache.sshd.client.subsystem.sftp.extensions

Interface MD5HandleExtension

All Superinterfaces:

NamedResource, OptionalFeature, SftpClientExtension

All Known Implementing Classes:

MD5HandleExtensionImpl

public interface MD5HandleExtension
extends SftpClientExtension

Author:

Apache MINA SSHD Project

See Also:

DRAFT 09 - section 9.1.1

Field Summary

Fields inherited from interface org.apache.sshd.common.NamedResource

BY_NAME_COMPARATOR, NAME_EXTRACTOR

Fields inherited from interface org.apache.sshd.common.OptionalFeature

FALSE, TRUE

Method Summary

Modifier and Type	Method and Description
byte[]	getHash(SftpClient.Handle handle, long offset, long length, byte[] quickHash)

Methods inherited from interface org.apache.sshd.client.subsystem.sftp.extensions.SftpClientExtension

getClient

Methods inherited from interface org.apache.sshd.common.NamedResource

findByName, getName, getNameList, getNames, removeByName

Methods inherited from interface org.apache.sshd.common.OptionalFeature

all, any, isSupported, of

Method Detail

getHash

byte[] getHash(SftpClient.Handle handle,
               long offset,
               long length,
               byte[] quickHash)
        throws IOException

Parameters:

handle - The (remote) file Handle

offset - The offset to start calculating the hash

length - The number of data bytes to calculate the hash on - if greater than available, then up to whatever is available

quickHash - A quick-hash of the 1st 2048 bytes - ignored if null/empty

Returns:

The hash value if the quick hash matches (or null/empty), or null/empty if the quick hash is provided and it does not match

Throws:

IOException - If failed to calculate the hash